Virgin Media Community

[devbrodie]

I have 2 servers in my network which I expose to the internet via port forwarding.

One of these devices used to have the internal IP of 192.168.0.6, but I have recently changed it's IP address to 192.168.0.5.

Today I opened the port forwarding page on the router and deleted the old rule and tried to create a new rule for the new IP address.

When entering the IP address, the router's script logic tells me that 192.168.0.5 is not a valid IP address!

As such, I cannot add the new rule which means my service is no longer visible to the Internet.

I tried speaking with VM tech support, but the people I dealt with obviously don't have a clue about port forwarding because they kept telling me that my routers IP address is 192.168.0.1 - yeah, they were that good!

[Client62]

Does the Hub expect the 192.168.0.5 IP to be on the DHCP reserved list before it will accept the port forward.

[devbrodie]

no - I dont use DHCP on the router anyway - never have, I use my pi-hole for DHCP

[Tudor]

Your picture does not contain any port numbers, perhaps that’s the problem and it’s an error in the message given.

[devbrodie]

yeah - I know it doesnt - that's not the problem. It's the fact that the page thinks that 192.168.0.5 isn't a valid IP.

The screen shot was just to show the error

trust me, I've used this for years. I know how port forwarding is supposed to work. If the stupid page wasn't using JavaScript to detect for a valid IP, then it wouldn't block you from going any further

[gitty]

Try forwarding to an ip inside the DHCP range (even though the DHCP server is not enabled). It sounds stupid, but some firmwares are stupid. 🙂

[devbrodie]

192.168.0.5 is in the range. I have 50+ device in my network. My DHCP leases starts at 192.168.0.2 and ends at 250. I reserve IPs between 0.2 and 200 - Anything outside that range is a device which I dont "control" - i.e. a guest mobile/tablet etc.

Its not the IP address that's wrong - its the VM router web page - there's obviously been an update and that has included a javascript file which is trying to validate the entered IP and getting it wrong.

If VM weren't so flipping controlling with their router this wouldn't be an issue

[gitty]

If the bug is only in the javascript, you could fiddle around with it a little (using the browser's web developer).

The DHCP scope is a thing in other firmwares. The RDK-B firmware will not forward to an ip outside of it, but not the issue here, I see.

[devbrodie]

It makes no difference what IP I enter - it says that are all wrong...

[devbrodie]

I've been trying that for most of the day - I'm not a programmer, so I can find the variable in the HTML which it looks at, but then can't find that in the JavaScript file - There's 6 or 7 js files - I think the correct one is the "base.js" file, but can't find where it does the validation.